Removed deprecated example.

Author: Jon Drobny

.github/workflows/rustbca_compile_check.yml

@@ -65,7 +65,6 @@ jobs:
         ./target/release/RustBCA 0D examples/titanium_dioxide_0D.toml
         ./target/release/RustBCA 1D examples/layered_geometry_1D.toml
         cat 2000.0eV_0.0001deg_He_TiO2_Al_Sisummary.output
-        ./target/release/RustBCA examples/boron_nitride.toml
         ./target/release/RustBCA examples/layered_geometry.toml
         cat 2000.0eV_0.0001deg_He_TiO2_Al_Sisummary.output
         ./target/release/RustBCA SPHERE examples/boron_nitride_sphere.toml